I've had one of these screwed down onto my wooden workbench since our house was built in 2006. The orientation should be like that shown in my picture, with the vertical guide closest to you.
The only drawback to this design is that the scraper might develop somewhat of a concavity over time, as the tendency is to sharpen more of the middle of the scraper edge's length.
Another approach is to use a sander on your scraper edge, but that of course entails placing your scraper in a vise then getting out your sander (assuming you already have a sander). For a quick refresh though of the scraper edge, this Swix tool is perfect.
And for anyone wondering whether scraper sharpening is the ultimate in gear obsession, not really: the time spent refreshing a scraper edge is far less than the extra time spent scraping off wax with a dull scraper.
Whoops, picture not loading -- but just take the listing picture and reverse it by 180 degrees for correct orientation screwed down on your work bench.
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